OP, something to consider. There are a lot of great cars that have been suggested, but when you get a car past 100k miles, you'll have to be doing frequent repairs. Not necessarily huge fixes, but it becomes a more frequent thing. The types of cars here are listed in order of cheapest to repair to most expensive. Keep this in mind since you've got a limited budget to work with.
-Economy domestics (i.e. Ford Taurus)
-Utility domestics (i.e. Jeep Cherokee)
-Economy imports (i.e. Honda Accord)
-Utility imports (i.e. Nissan Pathfinder, Volvo AWD)
-Luxury domestics (i.e. Lincolns, Cadillacs)
-Luxury imports (i.e. Infinity, Acura)
-Exotics and above(you won't be getting into these)
Spend no more than 8k and save the other 2k for if something breaks. You'll be very glad you have it.
If you're smart, if you value your continued existence, if you have any plans about seeing tomorrow, there is one thing you never, ever put in a trap.
And what would that be, sir?